Wow it is sad that engineers have to read public internet forums like this to be able to do their job properly eh?. Just calling their attention should be enough although in my opinion RF propagation models should have already told them that 6 kW was not enough juice (unless they only want to catter to only Hamilton).

Just a note , anyone loosing CHCH make sure you use a proper VHF antenna (although at merely 6 kW I doubt anyone in the toronto area will get it anyways)